HighFix available
bus: mhi: host: Fix race between unprepare and queue_buf
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: bus: mhi: host: Fix race between unprepare and queue_buf A client driver may use mhi_unprepare_from_transfer() to quiesce incoming data during the client driver's tear down. The client driver might also be processing data at the same time, resulting in a call to mhi_queue_buf() which will invoke mhi_gen_tre(). If mhi_gen_tre() runs after mhi_unprepare_from_transfer() has torn down the channel, a panic will occur due to an invalid dereference leading to a page fault. This occurs because mhi_gen_tre() does not verify the channel state after locking it. Fix this by having mhi_gen_tre() confirm the channel state is valid, or return error to avoid accessing deinitialized data. [mani: added stable tag]
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.15.181, 6.1.135, 6.12.24, 6.13.12, 6.14.3, 6.6.88
- CVEs
- CVE-2025-23151
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 16:15 UTC · Revision 1
Source evidence
bus: mhi: host: Fix race between unprepare and queue_buf
core-osv · Original sourcePublished 1 May 2025, 12:55 UTC
In the Linux kernel, the following vulnerability has been resolved: bus: mhi: host: Fix race between unprepare and queue_buf A client driver may use mhi_unprepare_from_transfer() to quiesce incoming data during the client driver's tear down. The client driver might also be processing data at the same time, resulting in a call to mhi_queue_buf() which will invoke mhi_gen_tre(). If mhi_gen_tre() runs after mhi_unprepare_from_transfer() has torn down the channel, a panic will occur due to an invalid dereference leading to a page fault. This occurs because mhi_gen_tre() does not verify the channel state after locking it. Fix this by having mhi_gen_tre() confirm the channel state is valid, or return error to avoid accessing deinitialized data. [mani: added stable tag]
osv:CVE-2025-23151
Kernel
Fixed versions: 5.15.181, 6.1.135, 6.6.88, 6.12.24, 6.13.12, 6.14.3
Complete source record
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